Lock



M. GRABAREK I LOCK Filed Feb. 15, 192-3 5 Sheets-Sheet 5 I FIG-4'.

Patented Oct. 30, 1923.

UNITED STATES PATENT OFFICE.

irrcnnr, antenna, or MARQUETTE. MICHIGAN, ASSIGNOR or ONE-HALF TO SAMUEL NOVAK, or MARQUETTE, 'MICHIGAN.

LOCK.

' Application filed February 15 1923. Serial No. 619,153.

To all whom it may concern:

Be it known that I, MIOHAL GRABAREK, a citizen of Poland, residing at Marquette, in the county of Marquette and State of Michigan, have invented certain new and useful Improvements in Locks, of which the following is a specification. i i

This invention relates to certain new'and useful improvements in locks, and'has particular reference to looks of the type wherein the locking bolt is shifted by a key.

The primary object of the invention is to.

provide a lock wherein a sliding bolt that is shifted by a key requires several turns or movements of the key in opposite directions to effect the shifting of the bolt to a releasing position.

With the above general objects in view as the nature of .the invention is better understood, the same consists of the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimed. I

In the drawings, wherein like reference characters designate corresponding parts throughout the several views, T

Figure 1 is a top plan view of a lock constructed in accordance with the present invention, the upper wall of the lock casing being removed, and the lockfmounted in a supporting structure, as atrunk or the like,

Figure 2 is a top plan view of the lock with the cover plate for the lock mechanism removed showing the key operated shiftable bolt in its locked position and its limit of movement in one direction with the notched positioning arm for thesliding bolt inserted by dotted lines in a shifted position engagedby a key,

Figure 3 is a top plan View of the lock mechanism, similar to Fig. '2 showing theposition assumed by the slidinglock bolt upon one rotation of the operating key in a clockwise direction, showing the lock bolt partially released from the keeper member.

Figure 4 is a top'plan view, similar to Fig. 3 showing the position of the lock bolt when the operating key has completed two revolutions in a clockwise direction with the lock boltin engagement. with the keeper members, i t

Figure 5 is a top plan view, similar to Fig.4: showing the releasing position of the lock bolt .acomplished by a single contraclockwise rotation of the operating key,

Figure 6 is a perspective view of the slid- 1I1%l00k plate or bolt, 6

igure 7 is a perspective View of a spring v arm associated with thelock bolt.

Flgure 8 is a perspective view of the key engaging tumbler that is pivotally andresiliently mounted on the sliding lo ck bolt,

Figure 9 is .a fraginentary' perspective View of the notched tensioned arm for re taining the lock bolt in difierent positions, Figure 10 is a perspective view of the cover plate forthe lock mechanism, and

Figure 11 is a side elevational view of a key employed for operating the lock.

Referring more in detail to, theaccompanying drawing, there is illustrated a lock of the key operated .slidingbolttype, the

same being adaptable for various uses and herein illustrated in connection with the body portion 1 and cover 2 of the box or trunk. The lock casing is countersunk with in the body portion 1 and embodiesa bottom plate 3having an upper edge wall or flange 4 with a removable cover, not illustrated, that is'securedin position in the body portion 1 by the cross bolts 5 as clearly illustrated. 1 i

'The sliding bolt employed in the lock mechanism is shown in detail in Fig. 6 and includes a plate 6 having the, lower edge thereof grooved as at 7, forming a depending centrally positioned finger 8 and end arms'9 and 10, the arm 10 carrying'a downwardly directed angularly disposed lug .11

. clearly shown in Figs. 2 to 5. The bolt body 12 iscarried bythe upper edge of theplate 6 and carries upwardly directed arms 18,

the intermediate and one end arm carrying T-shaped bolt heads 14, while a single in wardl directed bolt he'ad' le carried by the ot erend 'armas clearly shown in Fig. 6. A depending longitudinally extending rib 15' is carried by the bolt body 12, and whenv the bolt, as illustratechin Fig. 6 is slidably mounted upon the bottom plate 3 of the lock casing, the rib'15 engages therib 16 carried by the bottom plate 3 ofthe lock casing v for uiding the movements thereof, the upper edges of the bolt heads 14 and 14? contacting the flange 1 of the casing plate.

A tensioned arm forreta'ining the sliding lock bolt in its variously shifted positions is disposed within the lock casing,*the arm 17 being preferably formed integral with a coil spring18 at one end. thereof thatis anchored uponthe stud 19 carried by the bottom plate 3 of the lockcasing, the tensioned arm 1 being-disposed beneath the depending arms 9 and 10 of the locking plate sectionbqvitln the lower edge thereof normally disposed beneath the central finger 8 of the lock plate,

as clearly shown in Fig. 4. The lower edge of the tensioned arm "17 adjacent the outer.

free end thereof is provided with a series of spaced notches 20 and 21, theinnernotch 20 arm 10 is received in the notch 20 as shown in Fig.2. r u v A tumbler 22 of the type'be'st illustrated in Figs. 2 to 5, and 8, is pivotally' mounted when the lock bolt is in the positionishown d-isplace the lug llfrOin thenotch 20,- conupon the lock plate arm 10 by a stud pin 23 passing through an opening 24. in the tumbler, and an opening 25 in the arm 10, the tumbler '22 being provided with a key engaging projection 26 and maintained under tension by the arm 27, shown in Fig.

"7 as'being provided with a notched portion 28 adjacent its lower side to engage the upper side of the tumbler 22, the arm 27 carrying a coiled spring 29 at one end thereof that is anchored upon the stud 30 carried by the lock plate 6' as shown in Figs. 4 and 6;

" A coverplate 31, shown in-Figs. 1 and10 is provided for the lock -mechanism, the same being provided with a key opening-32 and bolt receiving openings 33 'for anchoring the same to the bottom plate '3o1fthe 1 look casing, the-cover 31 being provided with a depending flange 34 uponits upper "edge that engages the shoulder 12 at the lower end of the bolt body 12 that cooperates with the rib and guides 15 and l6respective- 1Q ly for guiding the sliding movements of the bolt. A keeper plate 35 is carried by the hinged cover 2'and carriesdepending apertured keeper arms 36 that are projected through openings in the flange 4 when the cover 2 is in a closed position as illustrated.

the bolt heads'141and 14 of the lock bolt,

in Fig. 2, the operating key 37 shown in detail in Fig. 9" as being provided with a single lateral ward 38 has thetubular shank 1 thereof received on the centeringpin39,

and upon rotating the key in a clockwise direction, the ward38will engage the lower edge ofthe'tensioned-arm-17'to elevate the same against the tension of the spring 18 to tinued rotation of the key placing. the ward I38 into engagement with thekey-en-gaging end2ofl the tumbler 22,- as shownby dotted lines in Fig. 2 for shifting the lock bolt to theposition shown in 3, the left hand 7 endsof the bolt heads 14 and 14 still re- I maining in the apertured keeper lugs'36 with hand si'deof the lock casing to position the lug ll'for reception in the outer end notch a keeper lug, while the right hand ends of the T-shaped bolt heads 14 are moved into engagement with adjacent keeper lugs.

The singlecounter-clockwise rotation of the key 37 positions the ward-38 for engage- 'ment with the'arm 9 ofth'e lock plate '6 for shiftingthelock bolt to the released positionshown in Fig. 5 with the bolt plate lug 11 positioned in the intermediate arm "21, the bolt head 14 being displaced from* notch'21, the bolt heads 14 and 14 being then disengaged from the apertured keeper lugs 36 as shown in Fig. 5. It will therebo'lt 12--from:its keeper, itf is necessary to rotate the key 37 in opposite directions thereby rendering the look more complex in .its operation to unauthorized persons attemptingto release the same.

. JVhile there is herein shown and described the referred embodiment of the present .in-

vention, it is nevertheless to be understood .that minor changes may be madetherein '1.. In a lock of the type described, a sliding lookbolt, a keeper therefor, a tensioned arm associated with the lock bolt for retainthe same intdifi'erent positions, said bolt being constructed whereby sliding move-.

rnents thereof in opposite directions arereq r jp ior to shifting to a released position;.- r

2. In 2' i051: tramps described, a slid- ;ing lock bolt, a keeper therefor, a tensioned: In releasing the keeper plate lugs 36 from v taining the same in different positions; said bolt being 1' constructed whereby sliding movements thereof in opposite directions armlassociated with the lock belt for reare required priorto shifting to as released pos tion, andra key. for shifting the bolt.

3. In a lock: of the type described,

an tensione'd' armassociated with the different positions, said bolt being constructed whereby sliding movements thereof lease the same from engagement with the fore be seen that in order to release the lock a sliding lock belt, a keeper] therefor,

,lockfib olt vfor, retaining the same in in; opposite-directions are required prior c, to shiftingr to a. '"released position, a. key

adapted to engage the tensioned arm to .re-'

bolt and engaging the bolt for shifting the same, and a tensioned tumbler carried by the bolt initially engaged by the key for shifting the bolt.

4. In a lock of the type described, a sliding lock bolt, a keeper therefor, a tensioned arm associated with the lock bolt for retaining the same in different positions, said bolt being constructed whereby sliding movements thereof in opposite directions are required prior to shifting to a released position, a key adapted to engage the tensioned arm to release the same from engagement with the bolt and engaging the bolt for shifting the same, a tensioned tumbler carried by the bolt initially engaged by the key for shifting the bolt, and means carried by the bolt adapted to be engaged by the key for reversely shifting the bolt in moving the same to a released position.

5. In a lock of the type described, a slidinglock bolt, a keeper therefor, atensioned arm associated with the lock bolt for retaining the same in different positions, said bolt being constructed whereby sliding movements thereof in opposite directions are required prior to shifting to a released position, the connection between the tensioned arm and lock bolt including a lug carried by the bolt, and a series of notches in lower edge of the tensioned arm.

6. In a lock of the type described, a slidthe I ing lock bolt, a keeper therefor, a tensioned arm associated with the lock bolt for retaining the same in difl'erent positions, said bolt being constructed whereby sliding movements thereof in opposite directions are required prior to shifting to a released position, the connection between the ten sioned arm and lock bolt including a lug carried by the bolt, a series of notches in the lower edge of the tensioned arm, said bolt including a bolt body, spaced bolt arms carried thereby, and transverse bolt heads carried by the outer ends of the arms.

7. In a lock of the type described, a sliding lock bolt, a keeper therefor, a tensioned arm associated with the lock bolt for retaining the same in different positions, saidbolt be ing constructed whereby sliding movements thereof in opposite directions are required a prior to shifting to-a released position, the

devices for the bolt carried by the bolt and lock casing.

In testimony whereof I afiix my signature.

MIOHAL GRABAREK. 

